A lifting hopper type material feeding machine for a concrete spraying machine
By using a closed-loop conveyor belt and a small bucket structure for the concrete spraying machine, the problems of rapid wear, poor spatial adaptability, and difficult cleaning have been solved, resulting in extended equipment life, reduced costs, expanded application range, and improved construction efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- PINGDINGSHAN ZHONGCHUANG SUPPORT MASCH MFG CO LTD
- Filing Date
- 2025-08-26
- Publication Date
- 2026-06-23
Smart Images

Figure CN224393668U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of auxiliary equipment for concrete spraying machines, specifically a bucket-type feeder for concrete spraying machines. Background Technology
[0002] In concrete spraying construction, the feeding machine is a key piece of equipment to ensure continuous construction. Currently, the commonly used feeding machines are mainly of the single spiral structure, double spiral structure, conveyor belt feeding, and hydraulic automatic feeding types, but all of them have obvious limitations.
[0003] When single-spiral and double-spiral feeders are in operation, the mixture will continuously rub against the screw and barrel, resulting in rapid wear and a significantly shortened service life. Furthermore, if a power outage occurs during construction, it is difficult to clean the mixture inside the barrel and screw. If it is not cleaned properly, the mixture will solidify and require disassembly and repair, or even cause the equipment to be scrapped, significantly increasing construction costs.
[0004] Because belt conveyors do not have material storage devices on the belt, the mixed material is simply piled on the belt. When installing, the slope cannot be too steep, otherwise the mixed material will slip due to gravity and cannot be conveyed. If the slope is reduced, more space is required for the layout, making it difficult to apply in places with limited space such as tunnels and subways.
[0005] Hydraulic automatic feeders are equipped with hydraulic systems such as oil pumps, cylinders, and control valves. They are not only expensive and cumbersome to maintain, but also large in size and require lifting operation, which places high demands on the working space and makes them unsuitable for placement in limited spaces. In addition, they require the cooperation of large equipment such as forklifts, which limits their application scenarios. Utility Model Content
[0006] (a) Technical problems to be solved
[0007] To overcome the aforementioned deficiencies of the prior art, this utility model provides a bucket-type feeder for a concrete spraying machine, which solves the problems in the prior art:
[0008] The feeding machine suffers from problems such as rapid wear and short service life; poor spatial adaptability, making it difficult to set up in confined spaces; high cost and cumbersome maintenance; difficulty in cleaning up the mixture after a power outage; and limited application scenarios.
[0009] (II) Technical Solution
[0010] To achieve the above objectives, this utility model provides the following technical solution: a bucket-type feeder for a concrete spraying machine, comprising a frame, a drive wheel assembly movably mounted on the top of the frame, a driven wheel assembly located on the upper right side of the frame, and a closed loop transmission belt fitted between the drive wheel assembly and the driven wheel assembly; multiple small buckets are evenly spaced on the transmission belt, and the small buckets are connected to the transmission belt by fixing bolts; a drive mechanism is located on one side of the top of the frame, and an adjusting support rod is also provided on the frame, one end of which is fixed to the top of the frame, and the other end is hinged to one side of the transmission belt, for supporting the transmission belt and adjusting the tilt angle between the transmission belt and the frame; a spraying machine hopper is located directly below the driven wheel assembly, and the spraying machine hopper is connected to the concrete spraying machine.
[0011] Optionally, the drive wheel assembly includes a drive wheel and a pulley shaft assembly. The drive wheel is rotatably mounted on the top of the frame via the pulley shaft assembly, and the drive wheel is connected to the pulley via a V-belt drive.
[0012] Optionally, the adjusting support rod includes a fixed section and a telescopic section. The fixed section is hinged to one side of the transmission belt, and the telescopic section is sleeved inside the fixed section and fixed by locking bolts. The end of the telescopic section away from the fixed section is provided with a support foot pad and is fixed to the top of the frame by the support foot pad.
[0013] Optionally, the transmission belt is made of high-strength wear-resistant rubber material, and high-strength steel plates are provided on both sides to provide sufficient stability.
[0014] Optionally, the drive mechanism includes a motor, a pulley, and a V-belt. The motor is fixed on the frame, and the motor output end is connected to the pulley. The pulley is connected to the drive wheel assembly via the V-belt.
[0015] (III) Beneficial Effects
[0016] This utility model provides a bucket-type feeder for a concrete spraying machine, which has the following advantages:
[0017] 1. This concrete spraying machine uses a bucket-type feeder, which achieves continuous feeding by using a closed-loop conveyor belt in conjunction with spaced small buckets. The mixture is stored in the small buckets and moves with the conveyor belt, resulting in virtually no friction and wear. There are few vulnerable parts. With regular lubrication of the bearings of the drive wheel assembly and driven wheel assembly, the service life of the equipment can be significantly extended and the overall operating cost reduced.
[0018] 2. This concrete spraying machine uses a bucket-type feeder. The conveyor belt can be arranged vertically or at a slight inclination. With the help of adjustable support rods, the tilt angle can be flexibly adjusted. It occupies little space and can adapt to the construction needs of narrow places such as tunnels and subways, making it more widely used.
[0019] 3. This concrete spraying machine uses a bucket-type feeder, which has a simple structure, does not require a complex hydraulic system, and has low manufacturing costs. The equipment is small in size, flexible in disassembly and assembly, and convenient in turnover. Moreover, the feeding method is flexible. The small bucket is only 10-20cm above the ground. In confined spaces or small projects, manual loading can be carried out to reduce labor intensity. In large space scenarios, it can be equipped with an automatic feeder to achieve automatic feeding. No manual intervention is required throughout the process, which improves work efficiency.
[0020] 4. This concrete spraying machine uses a bucket-type feeder. In case of power outages or other emergencies, the residual mixture in the small bucket can be cleaned manually, avoiding the hidden danger of the mixture being difficult to clean after it has solidified and reducing the difficulty of equipment maintenance. Attached Figure Description
[0021] Figure 1 This is a schematic diagram of the structure of this utility model;
[0022] Figure 2 This is a front view structural diagram of the present invention;
[0023] Figure 3 This utility model Figure 1 A magnified structural diagram of point A in the middle.
[0024] In the diagram: 1. Frame; 2. Drive wheel assembly; 201. Drive wheel; 202. Pulley shaft assembly; 3. Driven wheel assembly; 4. Transmission belt; 401. High-strength steel plate; 5. Small bucket; 6. Fixing bolt; 7. Drive mechanism; 701. Motor; 702. Pulley; 703. V-belt; 8. Adjustable support rod; 801. Fixed section; 802. Telescopic section; 803. Locking bolt; 804. Support foot pad; 9. Shotcrete machine hopper; 10. Concrete shotcrete machine. Detailed Implementation
[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.
[0026] Unless otherwise defined, the technical or scientific terms used in this disclosure shall have the ordinary meaning understood by those skilled in the art. The terms "first," "second," and similar terms used in this disclosure do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.
[0027] Example 1:
[0028] Please see Figures 1 to 3 This utility model provides a technical solution: a bucket-type feeder for a concrete spraying machine. To achieve continuous feeding in confined spaces, a closed-loop conveyor belt 4 is used in conjunction with small buckets 5, driven by a motor 701 to achieve cyclic feeding. The specific structure includes a frame 1. A drive wheel 201 (i.e., drive wheel assembly 2) is rotatably mounted on the top of the frame 1 via a pulley and shaft assembly 202. A driven wheel assembly 3 is located on the upper right side of the frame 1. A conveyor belt 4 is fitted between the drive wheel assembly 2 and the driven wheel assembly 3. The conveyor belt 4 is made of high-strength, wear-resistant rubber, and high-strength steel plates 401 are installed on both sides to provide sufficient stability and ensure load-bearing and wear resistance. Multiple small buckets 5 are installed at intervals on the conveyor belt 4. The small buckets 5 are connected to the conveyor belt 4 via fixing bolts 6 and can rotate flexibly to unload materials. The lowest point of each small bucket 5 is 15cm above the ground for easy manual loading.
[0029] In the drive mechanism 7 on one side of the frame 1, the motor 701 is fixed to the frame 1 with bolts. The output end of the motor 701 is connected to the pulley 702, and the pulley 702 is connected to the drive wheel 201 via a V-belt 703 to achieve power transmission. An adjusting support rod 8 is also installed on the frame 1. The fixed section 801 of the adjusting support rod 8 is hinged to one side of the transmission belt 4, and the telescopic section 802 is fitted inside the fixed section 801 and fixed with locking bolts 803. The support length can be adjusted to change the tilt angle of the transmission belt 4 to adapt to different site requirements. The support foot pad 804 at the bottom of the telescopic section 802 is installed with the frame 1 to improve equipment stability. A shotcrete hopper 9 is correspondingly located directly below the driven wheel assembly 3. The shotcrete hopper 9 is connected to the concrete shotcrete machine 10 to ensure accurate entry of the mixture into the shotcrete equipment.
[0030] Example 2:
[0031] To enhance the adaptability of the equipment, the number of small buckets 5 can be adjusted according to construction needs, and the spacing between adjacent buckets can also be adjusted. The small buckets 5 are 15m above the ground, which facilitates batch loading. The conveyor belt 4 has a good thickness, which enhances its load-bearing capacity for heavier mixtures. The support feet 804 of the adjusting support rod 8 are made of steel and are connected to the frame 1 to prevent the equipment from slipping during operation.
[0032] Example 3:
[0033] To optimize the unloading effect, the small bucket 5 is fixed to the transmission belt 4 by the fixing bolt 6 to ensure that the mixture is poured more thoroughly; the V-belt 703 in the drive mechanism 7 adopts an anti-slip structure to avoid slippage during transmission and ensure the stable operation of the transmission belt 4.
[0034] All electrical components mentioned in this article are connected to an external main controller and 220V AC mains power, and the main controller can be a conventional known device such as a computer that can control it.
[0035] In this invention, the working steps of the device are as follows:
[0036] First, based on the available space at the construction site, adjust the tilt angle of the transmission belt 4 by adjusting the support rod 8, and then tighten the locking bolt 803 to secure it. Start the motor 701, which drives the drive wheel 201 to rotate via the pulley 702 and the V-belt 703. The drive wheel 201 drives the transmission belt 4 and the driven wheel assembly 3 to move synchronously. When the construction space is small and the workload is light, the ground mixture is manually loaded into the small bucket 5. The small bucket 5 rises with the transmission belt 4 and, when it reaches the drive wheel 201, rotates around the transmission belt 4 under gravity, dumping the mixture into the spraying machine hopper 9, and finally into the concrete spraying machine 10. When the construction space is large, a loader loads the mixture into the large hopper of the automatic loading machine, which then distributes the mixture evenly into the small bucket 5, achieving automatic feeding. In case of a power outage, the remaining mixture in the small bucket 5 can be manually cleaned to avoid the risk of solidification.
[0037] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A bucket-type feeder for a concrete spraying machine, comprising a frame (1), characterized in that: The top of the frame (1) is movably mounted with a drive wheel assembly (2), and the upper right of the frame (1) is provided with a driven wheel assembly (3). A closed loop transmission belt (4) is sleeved between the drive wheel assembly (2) and the driven wheel assembly (3). Multiple small buckets (5) are evenly installed on the transmission belt (4), and the small buckets (5) are connected to the transmission belt (4) by fixing bolts (6). A drive mechanism (7) is provided on one side of the top of the frame (1), and an adjusting support rod (8) is also provided on the frame (1). One end of the adjusting support rod (8) is fixed to the top of the frame (1), and the other end is hinged to one side of the transmission belt (4) to support the transmission belt (4) and adjust the tilt angle between the transmission belt (4) and the frame (1). A spraying machine hopper (9) is provided directly below the driven wheel assembly (3), and the spraying machine hopper (9) is connected to the concrete spraying machine (10).
2. The bucket-type feeder for a concrete spraying machine according to claim 1, characterized in that: The drive wheel assembly (2) includes a drive wheel (201) and a pulley shaft assembly (202). The drive wheel (201) is rotatably mounted on the top of the frame (1) via the pulley shaft assembly (202), and the drive wheel (201) is connected to the pulley (702) via a V-belt (703).
3. The bucket-type feeder for a concrete spraying machine according to claim 1, characterized in that: The adjusting support rod (8) includes a fixed section (801) and a telescopic section (802). The fixed section (801) is hinged to one side of the transmission belt (4). The telescopic section (802) is sleeved in the fixed section (801) and fixed by locking bolts (803). The end of the telescopic section (802) away from the fixed section (801) is provided with a support foot pad (804) and is fixed to the top of the frame (1) by the support foot pad (804).
4. The bucket-type feeder for a concrete spraying machine according to claim 1, characterized in that: The transmission belt (4) is made of high-strength wear-resistant rubber material, and high-strength steel plates (401) are provided on both sides to provide sufficient stability.
5. A bucket-type feeder for a concrete spraying machine according to claim 1, characterized in that: The drive mechanism (7) includes a motor (701), a pulley (702) and a V-belt (703). The motor (701) is fixed on the frame (1). The output end of the motor (701) is connected to the pulley (702). The pulley (702) is connected to the drive wheel assembly (2) via the V-belt (703).